Chuck for ribbon-winding machines



E. A. OPPENHEIMER. CHUCK FOR mason wmnme MACHINES.

APPLICATION FILED MAY 14. 1919.

E. A. OPPENHEIMERwI CHUCK FOR RIBBON WINDING MACHINES.

APPLICATION FILED MAY 14, I919.

0 1 w; m w 5 Ma M A 5 M 2 a m M l D/ m E Q m 1 I I I 4 kill- EDGAR A. OPPENI-IEIMER, OF CHICAGO, ILLINOIS.

CHUCK FOR RIBBON-WINDIN MACHINES.

Specification of Letters Patent. Patented Sept. 7 1920.

Application filed. May 14, 1919.- Seria1 No. 297,034. I

To all whom it may concern Be it known that I, EDGAR A. OPPEN- HEIMER, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Chucks for Ribbon-Winding Machines; and I do de-' clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to chucks and more particularly to one well adapted for winding and unwinding devices or machines such as those used for handling inked ribbons for typewriters, adding machines, cash registers and the like. I

t is the primary object of my invention to provide a simple and practical chuck for ribbon winding devices which will enable the users .of typewriting machines, adding machines and the like to purchase inked ribbons on large reels and to quickly and easily grip previously used spools and wind new ribbon thereon, thereby saving the expense of the new spools and their individual shipping containers.

Another object of'my invention. is to provide an easily manipulated spool holding and rotating chuck which will hold substantially any of the spools now in common use upon the numerous makes of typewriters, adding machines, etc. 1

With the foregoing and other objects in View, the invention resides in the novel constructions, combinations. and arrangements of parts hereinafter described and claimed,

and illustrated in:the accompanying draw- I ings, in which:

Figure l is a side elevation of a ribbon windingdevice embodying my invention.

Fig. 2 is an edge view. Fig. 8'is a vertical section on the plane indicated by the line 3-3 of Fig. 1.

Fig. 4 is'an enlarged elevation of the spool rotating head.

Fig. 5 is a detail section on line 55 of Fig. 4.

Fig. 6 is a perspective view of one ofthe spool gripping jaws. I

In the drawings above briefly described, the numeral 1 designates a vertical standard preferably having a clamp 2 on its lower end for mounting it on a table, desk, counter or the like, the upper end of said standard 1 being provided with a bearing 3 in which a shaft 4 is rotatably mounted, said shaft having on one end a head 5 provided with jaws 6 adapted to grip one flange of a common form of ribbon spool 7. A gear 8 having a handle 9, and a. pinion 10 are shown for rotating the shaft 4but any other preferred means oouldwell be employed,

I have shown on the standard 1 a stub shaft 12 upon which a reel 13-is rotatably mounted, said reel carrying suflicient ribbon 14 to rewind several old spools for typewriters, adding machines and the like.

The head 5 in which resides the gist of the invention, includes two sections 18 and 19, said section 18 being in the formof a disk integral with or one end of the shaft 4, said disk being provided with a plurality of spirally directed slots 20.- The section 19 is also of disk shape and is stamped at its peripheral portion to provide radiating channel shaped arms 21 in otherwise carried by which the .jaws 6 are slidably mounted.

These jaws areby preference of stamped metal formation and are provided with the slots 20 and'it will thus be seen that by the'two sections 18 and relatively turning 19, the j aws-may be moved to either released or-gripping position, and when said jaws are in the last named position, the two disks are frictionally clamped together to prevent release of said jaws until required. Toclamp the two sections of the head together, I pro vide the section 19 with a stem 25, preferably formed integrally therewith, said stem passing rotatably through thecenter of the shaft 4 .and shown clearly insFig; 3.. mounted on theprojecting end of the stem 25and is connected thereto by a key 26 operating in a suitable .keyway. A thumb nut 27 is threaded on'the stem nut is'tighteneoLthe pinion 10 is clamped against one end'ofthe shaft 4 and at. the same time the two disks 18 and 19 are clamped together against relative turning.

The pinion 10 is 1 Preferably,though not necessarily, a washer projecting beyond said shaft as.

25 and when said -then tightened to may then be readily turnedto cause the ec- I centric slots 20 to move the jaws 6 inwardly into gripping engagement with the peripheral edge of the spool flange. The nut 27 is bind the disks l819,into frictional contact to hold the jaws 6 in their engaged positions. The end of the ribbon, it will of course be understood, is fastened to the ribbon spool to be wound by the usual devices which come on such spools. By turning the handle 9 in the proper direction it will be seen that the typewriter spoolmay be quickly turned until the desired quantity of ribbon is wound upon it. The ribbon is then cut and the spool removed from the winding device and applied to the typewriter .or other machine.

From the foregoing, taken in connection with the accompanying drawings, it will be seen that I have provideda comparatively simple andinexpensive, yet a highly efficient and reliable device for carrying out the objects of the invention, and since probably the best results are obtainable. from the details disclosed, they may well be followed. I. wish it understood however that within the scope of the invention as claimed, numerousminor changes may well be made.

I claim:

,1. In a chuck device, a'bearing, a rotatable shaft mounted in said bearing, a head on one end of saidshaft, consisting oftwo relatively movable sectlons, jaws carried by said-head for gripping the flange'of a ribbon spool, means for movlng said jaws to gripping and releasing positions by proper relative shifting of said head sections, means i for drawing one of said head sections laterally against the other to frictionally lock them against relative movement when said jaws are in gripping position, and means for rotating the aforesaid shaft.

- bon spool,

2'. In a chuck device, a bearing, a rotatable shaft mounted in said bearing, a head on oneend of said shaft, consisting of two relatively'movable sections, jaws carried by said head for gripping the flange of a ribgripping relative shifting of said head sections, means passing through said shaft for drawing one of said head sections laterally against the other to frictionally lock them against relative turning when in grippingpositio'n, and means for rotating said shaft.

3. In a chuck device, a bearing, a rotatable shaft mounted in said bearing, a head on one endof said shaft, consisting of two means for moving said jaws to andreleasing. positions by proper on said'stem for clamping said head sections against each other to prevent relative turning when said jaws are in gripping position, and means for rotating'said shaft.

4. Ina chuck device, a bearing, a rotatable shaft mounted in said bearing, ahead on one end of said shaft,'consisting of two relatively rotatable sections, jaws carried by said head for gripping the flange of a ribbon spool, means for moving said jaws to gripping and releasing positions by proper relative turning of said head sections, a stem extending from one section of said head through said shaft,'a nut threaded on said stem for clamping said head sections against ping position, and a driving member said shaft slidably keyed on said stem. between said nut and the adjacent end of said shaft.

5. In a chuck device, shaft, a disk carried a rotatably mounted by one end of said shaft and having, spirally directed slots, a second disk contacting'with the outer'side provided with jaws slidable in ed shaft, a disk earned by one'end of said.

device, a rotatably mountrelative turning when said jaws arein gripfor shaft and having. spirally directed slots, a 7

second disk contacting with the outer side of said first named disk and stamped to 'provide radial guides having slots, jaws slidable in said guides and having claws extending named slots to grip a ribthrough said last said jaws also having probon spool flange, jections received slots, whereby relative turning of the two disks will move said jaws as required, a stem projecting from said second named disk and passing throughv said shaft, a nut threaded on said stem andcoacting with said shaft to clamp the two disks together, and means for rotating'said shaft. I

in said spirally directed In testimony whereof Ihave hereunto set my hand EDGAR A. OPPENHEIMER; 

